Just noticed a fan-made game you don't have. Remember Steve Robb from Soft'n Fuzzy? He made a demo of Fantasy World Dizzy for the Neo Pocket Colour in 2004, although he never completed it because he began writing a Tetris clone instead to get the hang of coding and then he kind of disappeared afterwards. Here's the file for it:

So far tested a few Neo Geo emulators for Windows and the only one that seemed to like it was NeoPop. You'd have to manually enter (or copy/paste) the file name to run it as it doesn't have an option to show all files when opening games, but it still reads it just fine.